*{
    padding: 0px;
    margin: 0px;
}
a{
    list-style: none;
    color: whitesmoke;
    font-size: 16px;
}
ul li{
    list-style: none;
}
.clear{
    float: none;
}

/*顶部导航条*/
.topbar_nav{
    width: 100%;
    height: 40px;
    background-color: rgb(51,51,51);
}
.nav_left{
    width: 1400px;
    height: 40px;
    float: left;
}
.nav_left a,span{
    height: 40px;
    display: block;
    margin: auto 4px;
    float: left;
}
.sep{
    font-size: 16px;
}
.download{
    overflow: hidden;
    float: left;
}
.appcode{
    width: 90px;
    height: 90px;
    display: none;
    clear: both;
    z-index: 1;
}
.nav_right{
    width: 300px;
    height: 40px;
    float: right;
}
.nav_right li{
    float: left;
}
/*下拉列表*/
.container_nav{
    position: relative;
    width: 100%;
    height: 100px;
}
.logo{
    width: 60px;
    height: 60px;
    float: left;
    margin: auto 20px;
}
.logo img{
    width: 100%;
    height: 100%;
}
.container_bar{
    width: 1000px;
    height: 60px;
    margin: auto 100px;
    float: left;
}
.container_bar li{
    float: left;
    margin: 5px 5px;
}
.serch{
    width: 300px;
    height: 60px;
    float: left;
    margin: auto 10px;
    z-index: 99;
}
.text_box{
    width: 240px;
    height: 60px;
    float: left;
}
.keyword{
    width: 240px;
    height: 60px;
}
.select_box{
    width: 200px;
    display: none;
    background-color: white;
}
.serch_button{
    display: block;
    width: 60px;
    height: 60px;
    float: left;
}